Improvement in machines for lining straw-board



UNITEDSTATES PATENT FrIcn! .BENJAMIN F. FIELD, OF BELOIT, IWISGON SIN. I

IMPROVEMENT IN MACHINES FOR L'I'NING STRAWI-BOARD, &cI.`

Specification forming part otILetters Patent, No. 111,048, dated January 17, 1871,.

To all whom it may concern I Be it known that I, BENJAMINIIF. FIELD, of Beloit, in the, county of `Rock and State of Wisconsin, have invented a new andI useful Improvement in-l Machines for Lining Straw- Board, &c., andI do hereby declare'the following to be a full, clear, and I exactdescriptiolr ing apparatus. I Eig.` 5 is an elevation of one.-

end of the paste-box with I, adjusting-screws.` Fig. 6 isa perspective view of my. paste-mak` ing machine, pump,l&c'. Fig.;7 is' a longitu-A dinal vertical section ofthe same. I I I I My inventionrelates to the liningiof straw-I board or other, thickpapeL-Iduring the.. course;

of manufacture, with a web of thin white,I o1?v colored Ipaper-,; for which Letters APatent were issued to me July 26, 1870;` sand it consists,

first, in animproved `manner of producing a I lateral adjustment of the thin paper-reels,I

and in theImannerI of,Imaking .Ithe same adjustable upon .their shafts. I Second,` in there-I versible brake-roller I to regulate the tension feed of the thin paper., Third, in the, mode ofI adjusting the I gage. which regulates tl`1eIquan4 I tity of paste delivered at each revolution ofthe paste-roll. IfFourth, in the means,I for-I adjusting the pressure-roll at the junctionIof the web andI lining. Fifth, in the apparatus for making and delivering the paste.

In the drawings,.the frame A A represents the frame of la machine forVI .making Istraw; board, orotherthick paper;V BI Bare Ith e` driers with the necessary.calendersyand O is,y the cutting-machine, byy means of whichtheI finished web is divided into sheets, if it ,is de-I sired toplaceit in themarketin that form..

The cuttingengine, ho,wever, formsno part of the papermachinean d.is only placed at the end of said machine ias. ari-economical arrangements and-I Lmay beemployed or not, ac.V cordnglas the demand may beI-for the pro-I duct of the. mill in sheets orrollsfI The cutting-ImachiueImay. he any oneof the various kinds knownandused.` Power may be transe.

mitted tosaetuate ItheIvarious partsIo1"t l,1e1 11a chine by pulleys'and bands, or otherwise, as

4lis usual orsconvenient.

At some convenient point near the lastdri-I `ers,the frame D is I mounted, upon the frame `A to support the reels of lining-paper. Itis ifnecessary that the frame D and the pasting;V

apparatus shall be arranged with perfect ac-I .curacy, as to parallelism of the paper-reels and paste-roller with the driers and calen- Iders.; because, if not so adjusted, the lining.-

gpaper Will lead Ioi1 .ina direction slightly .obi-.I I

lique, and will, therefore, be moreor 4less lwrinkled, accordi nIglIto` the relative Obliquity iof said roller. I. therefore secure the frame I aD IIin position by means of ,screws passing*I .through the slotted Ifeet d d, which permits :the adjustmentofthe frame D in themanner. Aspecifledwiththeutmost exactness. f

It is necessary thatthe reels of thin paper :shallbe placed accurately above the webof `board ,onpaper toIfIbe I lined; otherwise theI edges ofthe lining-paper` andIbo-ard will not# coincide.`I Some Vmeans ofnlateral adjustment I I is therefore required. I

lInI the drawing, E representsone of the rollers,I upon `which theIwebI of thin fpaper is, 1 wound, to he delivered to Ithepasting-xmachine. ISaid roller is in the form of a hollow cylinder.l ;I t is to be placed upon the shaft Fwhen Ibeling made read-y Ifor the \Imachine,I and is secured thereon with firmness and truly cen-V tered by means of the conical plugse @,the smaller endsI of Iwhich enterthe cavity of the Icylinder and support it clear of the shaft. The plugs c` c are drivenup by the nutsfIf. The; cylinder E is also adjust-able laterally upon ltheshaft F by moving the uutsj'f and plugsy se e toward Ione or the other endofsaid shaft,I I as `the case mayrequire. I I

-iThe'IthinI paperIwillwnot always bewound upon theI roller E withaccuracy, and it is I therefore Inecessaryto. adjust it laterally after ithas been placed ,upon the machine. I therefore put a grooved collar,` G, upon oneendsof I the shaft F, and Itaclutch, H, tosaid groove. This clutchIisattached to, and operatedwby, a; clutch-rod, I, which runsacrossItlie frameID., below the roller E,and is moved by meansjof Ia screw-nut, J, which rests in-a bracket, K,

:secured tothe frameID. I- When the clutch-l with the utmost precision. The frame D has bearings fortwo paper-reels, E, so that while the paper is being removed from one another previously exhausted may be replaced by a full one, and thus no time will be lost when a roll is exhausted.

It is important that the lining-paper should pass from its roll E with uniform tension, and after mature consideration it has been decided to apply the tension directly to the roll from which the paper is running, rather than at any other point. I have therefore placed the rollerL above the paper-roll E, so that it will press upon the paper with its weight. Then, in order to produce the desired tension, I apply a friction-brake to said roller, by means of adjustable springs M, or an equivalent device, which press upon said roller and retard its revolution more or less; consequently it acts, to a greater or less degree, as a retardin g force upon the paper-roll E. Practically, the resistance is uniform, because the weight of the roller L is not sufficient-to produce any sensible variation in the friction at the journalbearings of the shaft F during the discharge of all the paper upon the roller E. V

The roller L is mounted at the ends of reversing-arms N, which are pivoted to the standards 0, midway between the bearings of the two paper-rollers E E, so that when one roll of paper is exhausted the brake-roll L may be instantly applied to the full paper-roll by simply reversing the arms N, as shown in dotted lines, Fig. 1.

From the paper-roll E the thin paper (represented by the line a) passes under the adjustable guide-roll P, and thus moves in a uniform direction to the paste-roll Q. The guideroller P is madeadjustable in a vertical direction, so as to regulate, as may be required, the direction of the lining-paper a toward the paste-roll, and thereby regulate the distribution of the paste and the time of contact with paste-roller.

The paste-roller Q is mounted so as to revolve partially within the paste-trough R, and, therefore, at each revolution it makes, it takes up a quantity of paste and distributes it upon thelining-paper as it passes over the surface of said roller. The quantity of paste so taken up will vary unless some regulating device is employed, and the scraper or doctor S is the most simple and efficient for that purpose. It consists of a metallic plate, perf'ectly straight upon the edge, and made adjustable, so as to be set at the required distance from the surface of the roller, to control exactly the quantity or thickness of the layer of paste carried over by the roller Q.

This scraper has been employed heretofore, but with different means for adjusting. The plate S is screwed or otherwise secured to several arms, T, and said arms are attached to the rear side of the paste-trough by screws t t. The front sides of the arms T are slightly curved Where they rest against the trough, and thumb-screws U-are inserted through the lower ends of said arms, and bear against the trough, so that when they are run inward they will force the lower ends of said. arms away from the trough; consequently force the edge of the scraper S nearer to the Vsurface of the roller Q.

When any change of adjustment of the scraper S is made the screws t are slightly loosened, and when the adjustment is completed they should be tightened again.

The paste-trough R requires to be adjusted with as much accuracy as the paper-rolls, and I therefore secure it to the frame of lthe machine in such a way that one end may be moved laterally. This may be e'ected by inserting the holding-bolt througha slot at one end, so that the corresponding bolt at the other end will serve as a pivotal point for the necessary adjustment 5- or a more accurate adjustment may be secured by means of the adjustin g-screwsfqlg, (see Fig. 5,) which bear against the sides of the box, and move it as may be desired. v

In the drawing, the dotted line b represents the web of straw-board or other paper which is inthe course of manufacture, and is represented as passing over the nal driers B B. At the point o it is joined by the web of lining-paper a and the pressure-roller V, which may be hot, if desired, and may be made either of wood or metal, presses the two webs firmly together. The position of the roller V may be adjusted by the compound movement permitted by the slots g h in the standard W and arm Y, while the weight of the roller V produces the requisite pressure.

From this point the lined web passes over the remaining driers, and is either reeled up in rolls or is cut in sheets at C, as may be required.

The proper and regular supply of paste is, of course, of prime importance, and to this end a reservoir of paste is placed in some convenient locality near the machine, and from said reservoir the paste is pumped into a trough, i.

The end of the supply-pipe from the pump is represented at j. It may, in some situ-ations, be more convenient to have the paste flow by its own gravity from an elevated reservoir; but the plan shown is considered to be the most economical and convenient. From the trough fthe paste descends through the pipe m into the trough R in a constant stream, and overflows at the opposite end of the trough R into the waste-pipe k, by which it is conducted back into the reservoir. By these means the flow is constant, and the paste is thoroughly mixed.

I nd it convenient to locate the paste-reseservoir A close beside the machine, and directly beneath the apparatus wherein it is made. The pump B stands in one end of said reservoir, and may be operated from the same prime motor which gives motion to the paste-mixer D'. In mixing the paste the flour is placed within the tub d', and water is admitted in a small stream through the waterpipe E. At the same time the revolving rake or mixer D is started. `When the flour .has become thoroughly wetted, and in the condition of dough free from lumps, the water may be let on more rapidly until the paste becomes thin. The water is then shut of,

and steam is let into the mass from the steampipe F'. The paste soon begins boiling, and so continues until completely cooked. The steam is then shut oil', and a valve, e', is opened to permit the hot paste to descend into the cooling-chamber G. When it has become cold it is thinned with water to the proper consistency for use, and the valve f may then be opened, and the pasternns oli' into the reservoir A', from which it is pumped, as hereinbef'ore described.

Having described my invention, what I claim as new is- 1. In combination with the roller E, the clutch H, and adjusting-rod I, substantially as and for the purpose set forth.

2. The adjustable plugs e and nuts f, comand the shaft 6. In combination with the scraper S, the

adjusting thumb-.screws U, substantially as and for the purpose set forth.

7. The combination and arrangement of the revolving mixer D with the cooling and thinning chamber G and the reservoir A, substantially as and for the purpose set forth and described.

BENJAMIN F. FIELD. In presence ofc ToBIAs REINOEHL, A. H. RITSOHER. 

